Electric toothbrush



FIG. 1 is a front right perspective view of a new design for an electric toothbrush;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines depict portions of the article that form no part of the claimed design. 

CLAIM We claim the ornamental design for an electric toothbrush, as shown and described. 